EteSync vs Tasks.org Server alt nono Calendarserver

A side-by-side comparison of two self-hosted calendar & contacts options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureEteSyncTasks.org Server alt nono Calendarserver
CategoryCalendar & ContactsCalendar & Contacts
LicenseAGPL-3.0Apache-2.0
LanguagePythonPython
Setup difficultyMediumHard
Min. RAM256 MB512 MB
Deploymentdocker, bare-metalbare-metal, source
GitHub stars★ 1,765★ 506
First released20172007
ReplacesGoogle Calendar, iCloudGoogle Calendar, Exchange

Why pick each one

Choose EteSync if…

  • Released under the AGPL-3.0 license
  • First-class Docker support for quick deployment
  • Active community (1.8k GitHub stars)
  • Written in Python
EteSync details

Choose Tasks.org Server alt nono Calendarserver if…

  • Released under the Apache-2.0 license
  • Written in Python
  • Lightweight — runs in 512 MB RAM
Tasks.org Server alt nono Calendarserver details

Frequently asked questions

Is EteSync or Tasks.org Server alt nono Calendarserver better?

EteSync is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Tasks.org Server alt nono Calendarserver if its specific feature set fits your needs better.

Are EteSync and Tasks.org Server alt nono Calendarserver free and open-source?

Yes. EteSync is licensed under AGPL-3.0 and Tasks.org Server alt nono Calendarserver under Apache-2.0. Both can be self-hosted at no software cost.

Can I run EteSync and Tasks.org Server alt nono Calendarserver with Docker?

EteSync: yes. Tasks.org Server alt nono Calendarserver: check the project docs for container support.

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